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DANGER
CAUTION
DANGER
DANGER
Wiring
• On explosion-proof type transmitter, its wiring work must be performed according to the required
laws and regulations. Incorrect wiring may cause explosion, fire or other serious accidents.
• Before making wiring work, be sure to turn OFF the main power to prevent electric shocks.
• Use wiring materials of correct rating to prevent fire accidents.
• Connect a power source of correct rating to prevent fire accidents.
• The transmitter should be grounded as specified to prevent electric shocks or incorrect operation.
• After installing the transmitter, firmly close the covers of the transmission unit and terminal box.
If not, rain water enter the transmitter which may result in trouble or incorrect operation.
Adjustment of Smart Type
•When using a flame-proof transmitter, do not connect HHC to the transmitter terminals and junc-
tion terminals.
Replacement of Maintenance Parts
•When removing an explosion-proof transmitter, turn OFF the main power, then disconnect the
piping and wiring. Do not remove it when the power is ON to prevent serious accident such as
explosion, fire, etc.